POWV3.5 / 250-9900INSTALLED BATTERY BACKUP SYSTEMOWNER’S MANUAL
CongratulationsCongratulations on your purchase of the POWV3.5 Battery Backup System! This product has been designed to provide you with peace of mind that you will always have a reserve power source to start your vehicle in the event your main battery fails. Please read the directions that follow to familiarize yourself with the product to ensure you obtain the best results from your equipment.
Safety Precaution The POWV3.5 contains a high-power battery that is not user-replaceable. No parts of the product are user-serviceable. Because the product requires direct connection to the vehicle’s electrical system, it is highly recommended that the POWV3.5 be installed by a qualified professional 12v installation technician. The POWV3.5 is to be installed inside of a vehicle’s cabin or trunk, and as such, it is important to use the proper gauge cable to maintain the current needed for the operation of the POWV3.5. It is also extremely important that the power cable is protected from being damaged or shorted in its run from the POWV3.5 to the vehicle’s battery. The POWV3.5 is designed with built-in protection circuitry to protect itself, but it will not prevent possible damage to the vehicle in which it is installed if the power lead from the vehicle’s battery to the POWV3.5 is shorted. If you have any questions or problems with your product, please contact a Voxx certified retailer, installer, or Voxx Technical Support at 1-800-645-4994.
Important NoticeInstallation of the POWV3.5 requires careful planning and preparation. The POWV3.5 should be installed under a seat or in a trunk, in a location where the GO/Status button can be accessed, and the indicator LEDs are visible. It should not be installed in the engine compartment or any other location where it will be exposed to extreme temperatures.
Because the POWV3.5 is an auxiliary power source that provides a jump-start assist to a vehicle battery, it must be connected in parallel with the vehicle’s battery to operate. The ground connection should provide a low resistance path to the chassis (if the vehicle has a negatively grounded chassis) or a connection can be made directly to the vehicle’s negative battery terminal. Similarly, the positive connection should provide a low resistance electrical connection to the vehicle’s positive battery terminal. The gauge of cable to be used is dependent on the distance from the POWV3.5 to the vehicle’s battery (See Installation Manual for Wire Gauge/Distance Guide). To allow high current amperage to flow freely once the POWV3.5 is engaged, no fuse should be used in the electrical path since most 12v fuses and/or circuit breakers are not designed to withstand high current amperage flow. This also requires special attention to wire routing so that no potential shorting of the power cable occurs.
WarningsDo not place or store items near or on top of the POWV3.5 to avoid damage to the system.The POWV3.5 is covered by multiple patents licensed to Voxx International.Patents/Pending Patents: US10840732B2, US20210135466A1, US20200136408A1
Overview
The POWV3.5 is an onboard battery backup system to provide an emergency jump-start (boost) in the event the vehicle’s battery is too weak to start the vehicle. It is wired in parallel to the vehicle’s starter battery and self-regulates its charge while the engine is running so that it is always ready for use. When needed, the POWV3.5 can be activated by pressing the GO/STATUS button or by using the mobile app. Once activated, the POWV3.5 provides a short pre-charge to the vehicle battery for approximately 5 seconds, following which the vehicle may be started. The POWV3.5 will detect when the engine is running and will automatically deactivate itself.
Features
| FEATURE | BENEFIT |
| Smart Charging | The POWV3.5 charges its internal battery when needed when the engine is running. |
| Dual Activation Methods | The POWV3.5 can be activated by pressing the GO/Status button on the system itself or by remotely accessing the system using a mobile device with the Voxx Power System mobile app. |
| Auto awake | The POWV3.5 wakes itself up if a vehicle start was attempted, but the vehicle failed to start. |
| Pre-charge vehicle battery | The POWV3.5 provides a pre-charge function that charges the vehicle battery prior to starting, which assists the jump-starting process and enables successful jump-starts under circumstances where other Jump-starters would fail. |
| High voltage battery | The POWV3.5 uses a higher voltage battery than most Jump-starters which provides for an effective pre-charge of the vehicle battery and provides for a more powerful jump-start to start your vehicle when other Jump-starters would fail. |
| High-capacity battery | The POWV3.5 uses a high-capacity battery to provide the starting power to facilitate multiple start attempts under the most demanding circumstances. |
| Battery heater | The POWV3.5 has an internal battery heater that automatically warms the internal battery allowing for successful jump-starts at temperatures down to -25C. |
| Deep sleep mode | When the vehicle is idle, the POWV3.5 enters a deep sleep mode that allows the internal battery to stay charged for > 6 months. |
| Short circuit protection | Triple redundant high-current and short-circuit protection safely prevent activation if the POWV3.5 senses a short circuit. |
| IP67 Rating | The POWV3.5 has an IP67 environmental rating meaning it can stand up to the harshest vehicle environments including being submerged in water for short periods of time |
| Mobile App | Allows for remote activation of the POWV3.5 without having to access the physical device. 00S and Android)* |
Controls and Indicators Diagram
- Battery Charge IndicatorThis indicator provides information on the charge level of the internal battery.
- Battery Temperature IndicatorThis indicator shows when the internal battery temperature is outside the ideal temperature range to perform a jump-start.
- Go/Status ButtonThis button is used to check the status of the POWV3.5 and to initiate a jump start.
- Status IndicatorThis indicator provides information on the system’s status.
- Positive Charge and Discharge Cable (RED)This cable provides a positive connection to the vehicle’s electrical system to allow for charging of the internal battery and discharging for jumpstarting the vehicle.
- Negative Charge and Discharge Cable (BLACK)This cable provides a negative connection to the vehicle’s electrical system to allow for charging of the internal battery and discharging for jump-starting the vehicle.
LED Indicators
The LED indicators provide the following information on the operation of the POWV3.5 system.Status Indicator
Solid Green – Indicates POWV3.5 is activated and ready to provide a jump-start. Start vehicle.Blinking Red – Indicates the POWV3.5 is not ready to be activated because there is a connection error, or the battery is too hot to perform a jump start. The TEMP indicator will also illuminate red if the battery is too hot.
Alternating Yellow and Blue – Indicates internal battery is too cold to provide jump-start and the battery heater has been activated. When the battery has reached operational temperatures after a few minutes, the POWV3.5 will be ready to provide a jump-start.
Slowly flashing Green – Indicates POWV3.5 is awake, and all conditions are OK for use. The Bluetooth function is active.Flashing Yellow – Slowly flashing indicates engine running. Fast Flashing indicates POWV3.5 has been activated and providing pre-charge in preparation for a jump-start attempt.
Battery Indicator
One to four Solid Green – Indicates charge level of the internal battery. Two or more indicates a charge level typically sufficient to the jump-start vehicle battery.
One Flashing Green – Indicates low charge level.
All turned on in sequence – Indicates battery charging.
The LED indicators provide the following information on the POWV3.5’s operation.Temperature Indicator
Green – Battery Temp OK
Red – Battery temperature too high to jump-start.Let the battery cool. If possible, increase ventilation around the unit.
Flashing Blue – Battery is cold. Multiple jump-start attempts may be required.
Operation
Once installed into a vehicle, the POWV3.5 wakes up and begins charging its internal battery when the vehicle is running to draw power from the alternator and not the vehicle battery. It continues to charge until it is fully charged, or the vehicle stops running and the unit goes into sleep mode. If charging is not complete when the vehicle stops running, it will continue charging the next time the vehicle is running. This process continues until the internal battery is fully charged. After the initial charge, the POWV3.5 will re-charge its internal battery as needed when the vehicle is running in order to sustain its full charge.Waking the UnitThe POWV3.5 wakes automatically when the car starts running or when there is a failed vehicle start attempt. The unit may also be wakened manually by pressing the GO/STATUS button once. When the unit wakes, all the LEDs flash once, and the status LED will slowly blink green indicating that the unit is ready to use if needed, unless the engine is running. The unit stays awake for 10 minutes after activation or continuously while the engine is running, and the internal battery is charging. While the unit is awake, the Bluetooth radio is active allowing connection with a mobile device running the Voxx Power Systems mobile application.Connecting with the Mobile AppWhile the unit is awake, the user can connect with the POWV3.5 using the Voxx Power Systems Mobile app by opening the VOXX Power Systems mobile app and selecting the POWV3.5 attached to the user’s vehicle. (See Page 13)Jump-StartingJump-starting a vehicle is a two-step process after the unit is activated; 1) pre-charging and 2) vehicle starting. The POWV3.5 is activated by pressing and holding the GO/STATUS button while the unit is awake, but engine is not running, as indicated by the STATUS indicator slowly flashing Green. The POWV3.5 may also be activated using the Voxx Power Systems mobile application running on a mobile device.Pre-chargingFirst, the POWV3.5 is activated which starts a vehicle battery pre-charge interval that lasts for about 5 to 15 seconds. The pre-charge supplies a charge to the vehicle’s battery which greatly assists the jump-starting process. During the pre-charge interval, the POWV3.5 is connected electrically to the vehicle’s battery and the STATUS INDICATOR blinks Yellow rapidly. While it is possible to start the vehicle during the pre-charge interval, it is recommended to wait until the interval is complete before attempting a start to ensure the greatest likelihood of success on the first attempt, especially in the most demanding circumstances such as extreme cold.
Vehicle StartingWhen the pre-charge interval is complete, the status indicator will illuminate steady Green and you will have 30 seconds to attempt to start the vehicle. If no attempt is made, the POWV3.5 will go back to the awake state, ready to be activated again. After completing a successful start, the unit will automatically deactivate. While the POWV3.5 can provide 10 to 20 jump starts when fully charged, the POWV3.5 may limit the number of jump-starts attempts to prevent the battery from overheating by de-activating the system. If that occurs, the TEMP INDICATOR will illuminate Red until the unit is ready to activate again.
Temperature ExtremesThe POWV3.5 will operate under wide temperature ranges, however, jump-starting performance may be limited or restricted under certain circumstances. The TEMP indicator will provide information about the internal POWV3.5 battery temperature when the unit is activated. If the POWV3.5 battery is within the normal operating temperature range, the TEMP indicator will be illuminated Green when the Go button is pressed on the POWV3.5 or the unit is activated using the mobile app. If the internal battery is below its ideal operating temperature, the TEMP indicator will flash Blue and The STATUS indicator will alternately flash Yellow and Blue until the internal battery heater warms the battery to the proper operating temperature. If the internal battery is above its maximum allowable temperature, the TEMP indicator will illuminate Red indicating it is too hot to use.
Cold Weather OperationThe POWV3.5 can provide a jump-start down to -25C, however, below certain cold thresholds, the internal heater must warm the battery prior to use. Like all batteries, the internal battery efficiency decreases at low temperatures, but the POWV3.5 is equipped with an internal heater that will warm the battery to bring it up to proper operating temperatures prior to activating the pre-charge feature. While the internal battery is warming, the TEMP LED will flash Blue and the STATUS indicator will alternately flash Yellow and Blue while the POWV3.5 remains disconnected from the vehicle battery. After the battery has reached a minimal operational temperature, the POWV3.5 will initiate the precharge feature for approximately 5 to 15 seconds and then the POWV3.5 is ready to provide jump-start assistance. Note, the internal battery heater will continue to warm the POWV3.5 battery during this time, increasing its efficiency since more than one start attempt may be required while the battery continues to heat.
Hot Weather OperationThe POWV3.5’s internal battery can be permanently damaged if it is used to jump-start a vehicle when its temperature is above 60C. Therefore, the POWV3.5 will prevent activation when its internal battery exceeds this temperature. This will be indicated by the TEMP indicator illuminating solid Red and the STATUS indicator flashing Red. If this situation arises, allow the POWV3.5 to cool by increasing air circulation around the unit. This can be achieved by opening doors, windows, the trunk, etc. and waiting until the POWV3.5’s internal temperature falls to a safe operational range that will be indicated by the TEMP indicator illuminating solid green upon activation.
Mobile App OperationSystem Requirements for the Controlling DeviceThe POWV3.5 system supports Apple Devices (iOS 7.0 and above) and Android devices OS (4.3 and above). Either must support Bluetooth 4.0 or higher.How to download the Android and Apple Mobile Apps (2 Options)
- Enter the keyword “Voxx Power System” in the Google Play Store or the Apple App Store search menu to access and download the free App.
https://apps.apple.com/app/id1531103807 - You can also enter the following into your Web browser: For iOS https://apps.apple.com/app/id1531103807
https://play.google.com/store/apps/details?id=com.voxxautomotive.voxxpowersystems
For Android https://play.google.com/store/apps/details?id=com.voxxautomotive.voxxpowersystems
Connecting your Device with the Voxx Power SystemOnce the App has been downloaded to your device, touch the icon to open the App. The App will automatically list available POWV3.5 units and display them on the screen. The POWV3.5 system closest to the mobile device will be listed at the top. Press to select that system. Press the icon for the POWV3.5 to wake the unit. The screen will show the POWV3.5 waking up ready to be used.
Apple App iOSThe General procedure for starting the vehicle will be as follows. Due to different scenarios such as weather, outside temperatures, and battery temperatures, the sequence of App events can change.
Android AppThe General procedure on starting the vehicle will be as follows. Due to different scenarios such as weather, outside temperatures, and battery temperatures the sequence of App events can change.
Troubleshooting
| Symptom | Remedy |
| Unit does not wake upon button press | Internal battery may be discharged below operable level. Run motor or drive for at least one hour and check again.Unit will not operate if not properly installed and connected electrically to the vehicle’s battery. The positive (Red wire) must be electrically connected to the positive terminal of the vehicle battery and the negative (Black) wire must be electrically connected to the negative battery terminal. The vehicle battery must be properly installed into the vehicle and connected properly to the vehicle’s ignition system. If you suspect these conditions are not met, please consult with your installation professional or a qualified vehicle mechanic to verify proper installation. |
| Unit will not activate upon button hold or via mobile app | Make sure unit Is awake before attempting to activate it as indicated by the STATUS indicator flashing Green slowly. If unit is not awake, press the GO/STATUS indicator or activate using the Voxx Power Systems mobile application.Unit will not activate If certain error conditions exist which will be indicated by the STATUS indicator flashing Red rapidly on the POWV3.5 or notifications received through the Mobile App.If the internal battery is too hot for use because of the environmental temperature or due to many jump-start attempts. The TEMP indicator will illuminate Red until the internal battery has cooled to an acceptable temperature. If the ambient environment around unit is hot, try improving air circulation by opening doors, windows or trunks in areas surrounding unit.If the battery charge level is too low to support additional jump-starts. The far-left LED of the BATTERY indicator will flash. |
| Unit will not connect to the mobile device. | Make sure the current version of the mobile app in installed on the mobile device. Make sure Bluetooth is activated on a mobile device. |
| After unit is activated, the vehicle will not start. | Depending on the state of the vehicle battery, and especially under very cold conditions, multiple start attempts may be required.Other Issues with the vehicle may also prevent it from starting such as bad connections or corrosion of the battery terminal connections. |
| Unit does not charge | The unit charges automatically when the internal battery level drops about 10% from its full charge and when the engine is running as Indicated by a voltage of at least 13V being provided by the alternator. If the alternator is not functioning properly, the unit will not charge. |
General Specifications
The following specifications relate to the POWV3.5
| POWV3.5 | |
| Nominal Voltage | 12-14V |
| Peak Current | 850Amps |
| Cranking Current | 525 Amps |
| Battery Capacity | 3500 mAh |
| Jumps Per Charge | > 20 (typically) |
| Maximum Recommended Engine Size (gasoline) | 8 L |
| Maximum Recommended Engine Size (Diesel) | 6 L |
| Environmental | IP67 |
| Storage Temperature | -40C to 85C |
| Operating Temperature — Jump Starting | -25C to 60C |
| Operating Temperature — Non-Jump Starting | -25C to 85C |
| Charging Current—While Engine is Running | <2A |
| Charge Retention | > 6 months |
| Wireless Connectivity | Bluetooth Low Energy (BLE) |
| Internal Battery Heater for enhanced cold-weather performance | Yes |
NOTE: Specifications are subject to change without notice.* iOS and Android names are trademarks™ or registered ®trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. All specifications are subject to change without notice.
12 MONTH LIMITED WARRANTY
for Voxx Power Systems Models POWV3.5/ 250-9900
VOXX ELECTRONICS CORP. (the Company) warrants to the original retail purchaser of this product that should this product or any part thereof, under normal use and conditions, be proven defective in material or workmanship within 12 months from the date of original purchase, such defect(s) will be repaired or replaced with the reconditioned product (at the Company’s option) without charge for parts and repair labor.To obtain repair or replacement within the terms of this Warranty, the product is to be delivered with proof of warranty coverage (e.g. dated bill of sale), specification of defect(s), transportation prepaid, to the authorized repair facility at the address shown below.This Warranty does not extend to costs incurred for installation, removal or reinstallation of the product, or to damage to the vehicle for which it is installed.This Warranty does not apply to any product or part thereof which, in the opinion of the Company, has suffered or been damaged through alteration, improper installation, mishandling, misuse, neglect, accident, or by removal or defacement of the factory serial number/bar code label(s). THE EXTENT OF THE COMPANY’S LIABILITY UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT PROVIDED ABOVE AND, IN NO EVENT, SHALL THE COMPANY’S LIABILITY EXCEED THE PURCHASE PRICE PAID BY THE PURCHASER FOR THE PRODUCT.
This Warranty is in lieu of all other express warranties or liabilities. ANY IMPLIED WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, SHALL BE LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY. ANY ACTION FOR BREACH OF ANY WARRANTY HEREUNDER INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY MUST BE BROUGHT WITHIN A PERIOD OF 24 MONTHS FROM THE DATE OF ORIGINAL PURCHASE. IN NO CASE SHALL THE COMPANY BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY. No person or representative is authorized to assume for the Company any liability other than expressed herein in connection with the sale of this product.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damage so the above limitations or exclusions may not apply to you. This Warranty gives you specific legal rights and you may also have other rights which vary from state to state.
VOXX Electronics Corporation, 180 Marcus Blvd., Hauppauge, New York 11788 / PH: 1-800-645-4994
References
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